You can give Amplitude a helping hand also by using the preamp section of an amp if it has a line out. Will need a dummy speaker load if it is valve.
You can still use the real thing this way.
Speaker cab IRs are also popular.
Now you have bought Ampli3 you have it easy.
Another advantage is if say 5 years or less down the track a new amp sim comes out or some such and that Sonar pjts today can be opened by thens super computers how good the preamp you used will be a factor but moreso if you end up with a killer song you can always reamp it with the real deal.
Because you have it easy to track with amp sims it is also easy to not put importance on the raw signal being recorded as the sims mask a lot of woes.
My point is really listen to your dry track rather than straight on with Amplitude or a cursory check of the level.
Get the dry track as good as you can is all I am suggesting.
Some better preamps/DIs can cost as much or more than a real amp.
Even Reamp devices are not cheap.
Have fun